Atomic Structure
Elements
PTE
100

Amount of known elements

118

100

H is element....

Hydrogen

100

AMU Stands for.....

Atomic Mass Unit

200

Isotope Definition

An atom with a different number of neutrons then normal
200

Mg is element.....

Magnesium
200

What is a column in the PTE called?

Group

300
The max amount of electrons on the innermost orbital

2 electrons

300

Co is element....

Cobalt

300
The meaning of the period number

The number of shells in the atom

400

The definition of Valence electrons

Electrons on the outermost shell

400

K is element.....

Potassium

400

The number in the top right corner is the.....

Atomic Mass

500

Atomic Mass is found by....

Averaging all the isotope and non isotope atoms in the universe
500

W is element....

Tungsten

500

All atoms on the PTE are.....

Neutral